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% Document Info
\author{Ilham (ilperdan0)}
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  /Title (azure-expressroute.pdf)
  /Creator (Cheatography)
  /Author (Ilham (ilperdan0))
  /Subject (Azure ExpressRoute Cheat Sheet)
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        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Azure ExpressRoute Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Ilham (ilperdan0)} via \textcolor{DarkBackground}{\uline{cheatography.com/126607/cs/26239/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Ilham (ilperdan0) \\
  \uline{cheatography.com/ilperdan0} \\
        \uline{\seqsplit{www}.packetnotes.com}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 21st January, 2021.\\
   Updated 21st January, 2021.\\
   Page {\thepage} of \pageref{LastPage}.
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  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
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\begin{document}
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\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Create an ExpressRoute circuit and peering}}  \tn
% Row 0
\SetRowColor{LightBackground}
Where is the menu to config ExpressRoute circuit in Azure portal? & Create a resource \textgreater{} Networking \textgreater{} ExpressRoute. \tn 
% Row Count 4 (+ 4)
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\SetRowColor{white}
What we do after we create a circuit on Azure Portal? & Send the provider the value in the Service key field to enable them to configure the connection. \tn 
% Row Count 9 (+ 5)
% Row 2
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What we do after the provider status is reported as Provisioned? & For Layer 2 connectivity, configure the routing for the peerings. For L3, the provider will configure that. \tn 
% Row Count 15 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.32 cm} x{5.68 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ExpressRoute Circuit Properties}}  \tn
% Row 0
\SetRowColor{LightBackground}
Circuit name & A meaningful name for your circuit, without any white space or special characters. \tn 
% Row Count 3 (+ 3)
% Row 1
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Provider & The ExpressRoute provider with which you've registered your subscription. \tn 
% Row Count 6 (+ 3)
% Row 2
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Peering location & A location enabled by the ExpressRoute provider in which to create your circuit. \tn 
% Row Count 9 (+ 3)
% Row 3
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Bandwidth & Select your bandwidth, from 50 Mbps up to 10 Gbps. Start with a low value. You can increase it later with no interruption to service. However, you can't reduce the bandwidth if you set it too high initially. \tn 
% Row Count 17 (+ 8)
% Row 4
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SKU & Select Standard if you have up to 10 virtual networks and only need to connect to resources in the same geopolitical region. Otherwise, select Premium. \tn 
% Row Count 23 (+ 6)
% Row 5
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Billing model & Select Unlimited to pay a flat fee regardless of usage. Or select Metered to pay according to the volume of traffic that enters and exits the circuit. \tn 
% Row Count 29 (+ 6)
% Row 6
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\seqsplit{Subscription} & The subscription you've registered with your ExpressRoute provider. \tn 
% Row Count 32 (+ 3)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{2.32 cm} x{5.68 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{ExpressRoute Circuit Properties (cont)}}  \tn
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Resource group & The Azure resource group in which to create the circuit. \tn 
% Row Count 2 (+ 2)
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Location & The Azure location in which to create the circuit. \tn 
% Row Count 4 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.32 cm} x{5.68 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Configure Private Peering}}  \tn
% Row 0
\SetRowColor{LightBackground}
Peer ASN & The autonomous system number for your side of the peering. This ASN can be public or private, and 16 bits or 32 bits. \tn 
% Row Count 5 (+ 5)
% Row 1
\SetRowColor{white}
Primary subnet & This is the address range of the primary /30 subnet that you created in your network. You'll use the first IP address in this subnet for your router. Microsoft uses the second for its router. \tn 
% Row Count 12 (+ 7)
% Row 2
\SetRowColor{LightBackground}
Secondary subnet & This is the address range of your secondary /30 subnet. This subnet provides a secondary link to Microsoft. The first two addresses are used to hold the IP address of your router and the Microsoft router. \tn 
% Row Count 20 (+ 8)
% Row 3
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VLAN ID & This is the VLAN on which to establish the peering. The primary and secondary links will both use this VLAN ID. \tn 
% Row Count 24 (+ 4)
% Row 4
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Shared key & This is an optional MD5 hash that's used to encode messages passing over the circuit \tn 
% Row Count 27 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Use private peering to connect your network to your virtual networks running in Azure.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{3.12 cm} x{4.88 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Configure Microsoft Peering}}  \tn
% Row 0
\SetRowColor{LightBackground}
Advertised public prefixes & This is a list of the address prefixes that you use over the BGP session. These prefixes must be registered to you, and must be prefixes for public address ranges. \tn 
% Row Count 7 (+ 7)
% Row 1
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Customer ASN & This is optional. It's the client-side autonomous system number to use if you are advertising prefixes that aren't registered to the peer ASN. \tn 
% Row Count 13 (+ 6)
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Routing registry name & This name identifies the registry in which the customer ASN and public prefixes are registered. \tn 
% Row Count 17 (+ 4)
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\mymulticolumn{2}{x{8.4cm}}{Use Microsoft peering to connect to Office 365 and its associated services.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Connect a VNet to an ExpressRoute circuit}}  \tn
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What we create before connect to a private circuit? & Must create an Azure virtual network gateway by using a subnet on one of your Azure virtual networks. \tn 
% Row Count 6 (+ 6)
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What a virtual network gateway provides & Provides the entry point to network traffic that enters from your on-premises network. It directs incoming traffic through the virtual network to your Azure resources. \tn 
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% Row 2
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What we use to control traffic that's routed from on-premises network? & Network security groups and firewall rules \tn 
% Row Count 19 (+ 4)
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How many virtual networks can be linked to an ExpressRoute circuit & Up to 10 virtual networks, but these virtual networks must be in the same geopolitical region as the ExpressRoute circuit. \tn 
% Row Count 26 (+ 7)
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How many ExpressRoute circuit can a single virtual network can connect to? & You can link a single virtual network to four ExpressRoute circuits if necessary. \tn 
% Row Count 31 (+ 5)
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\vfill
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\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Connect a VNet to an ExpressRoute circuit (cont)}}  \tn
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What is Connection Weight property? & If there are multiple circuits across different providers to prefer one circuit to another. \tn 
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What is ExpressRoute Direct option? & An ultra-high-speed option from Microsoft. \tn 
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How is ExpressRoute Direct different with ExpressRoute? & It provides dual 100-Gbps connectivity \tn 
% Row Count 11 (+ 3)
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What is FastPath & When FastPath is enabled, it sends network traffic directly to a virtual machine that's the intended destination. The traffic bypasses the virtual network gateway, improving the performance between Azure virtual networks and on-premises networks. \tn 
% Row Count 24 (+ 13)
% Row 9
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What FastPath doesn't support? & FastPath doesn't support virtual network peering (where you have virtual network peering. It also doesn't support user-defined routes on the gateway subnet. \tn 
% Row Count 32 (+ 8)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Architecture of ExpressRoute}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/ilperdan0_1611234809_Architecture_ExpressRoute.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{A circuit provides a physical connection for transmitting data through the ExpressRoute provider's edge routers to the Microsoft edge routers.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{How Azure ExpressRoute works}}  \tn
% Row 0
\SetRowColor{LightBackground}
Where ExpressRoute is supported? & across all regions and locations \tn 
% Row Count 2 (+ 2)
% Row 1
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Why we need to work with an ExpressRoute partner to implement ExpressRoute? & The partner provides the edge service: an authorized and authenticated connection that operates through a partner-controlled router. The edge service is responsible for extending your network to the Microsoft cloud. \tn 
% Row Count 13 (+ 11)
% Row 2
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What are circuits? & The connections to an endpoint in an ExpressRoute location that enable customer to peer on-premises networks with the virtual networks available through the endpoint. \tn 
% Row Count 22 (+ 9)
% Row 3
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What a circuit provides? & provides a physical connection for transmitting data through the ExpressRoute provider's edge routers to the Microsoft edge routers. \tn 
% Row Count 29 (+ 7)
% Row 4
\SetRowColor{LightBackground}
Do circuit establishes via public internet? & No, A circuit is established across a private wire rather than the public internet. \tn 
% Row Count 34 (+ 5)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
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\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{How Azure ExpressRoute works (cont)}}  \tn
% Row 5
\SetRowColor{LightBackground}
What are the prerequisites for ExpressRoute & - An {\bf{ExpressRoute connectivity partner}} or {\bf{cloud exchange provider}} that can set up a connection from your on-premises networks to the Microsoft cloud.\{\{nl\}\} - An {\bf{Azure subscription}} that is registered with your chosen ExpressRoute connectivity partner.\{\{nl\}\} - An {\bf{active Microsoft Azure account}} to request an ExpressRoute circuit.\{\{nl\}\} - An {\bf{active Office 365 subscription}}\{\{nl\}\} \tn 
% Row Count 20 (+ 20)
% Row 6
\SetRowColor{white}
ExpressRoute network and routing requirements & - Ensure that BGP sessions for routing domains have been configured. For each ExpressRoute circuit, Microsoft requires redundant BGP sessions between Microsoft's routers and customer peering routers.\{\{nl\}\} - Using NAT to IP Public is mandatory to connect through Microsoft peering. Microsoft will reject anything except public IP addresses through Microsoft peering.\{\{nl\}\} - Reserve several blocks of IP addresses in your network for routing traffic to the Microsoft cloud. 1 /29 or 2 /30.\{\{nl\}\} - One of these subnets is used to configure the primary circuit to the Microsoft cloud, and the other implements a secondary circuit. \{\{nl\}\} - Use the first address in these subnets to communicate with services in the Microsoft cloud. Microsoft uses the second address to establish a BGP session. \tn 
% Row Count 60 (+ 40)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{4 cm} x{4 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{How Azure ExpressRoute works (cont)}}  \tn
% Row 7
\SetRowColor{LightBackground}
ExpressRoute supports two peering schemes: & - {\bf{private peering}} to connect to Azure IaaS and PaaS services deployed inside Azure virtual networks. \{\{nl\}\} - {\bf{Microsoft peering}} to connect to Azure PaaS services, Office 365 services, and Dynamics 365. \tn 
% Row Count 11 (+ 11)
% Row 8
\SetRowColor{white}
What is the constraint of ExpressRoute private peering? & The resources that customer access must all be located in one or more Azure virtual networks with private IP addresses. Customer can't access resources through their public IP address over a private peering. \tn 
% Row Count 22 (+ 11)
% Row 9
\SetRowColor{LightBackground}
ExpressRoute availability & Microsoft guarantees a minimum of 99.95 percent availability for an ExpressRoute dedicated circuit. \tn 
% Row Count 27 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{ExpressRoute Peering}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/ilperdan0_1611236264_ExpressRoute_Peering.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{- {\bf{private peering}} to connect to Azure IaaS and PaaS services deployed inside Azure virtual networks. \{\{nl\}\} \newline - {\bf{Microsoft peering}} to connect to Azure PaaS services, Office 365 services, and Dynamics 365.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Create a New Circuit Connection}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{8.4cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/ilperdan0_1611267916_3-create-connection.png}}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}